/* break the existing list at current time point */
timer_get_prev_entries(cur_time, lcore_id, prev);
for (i = priv_timer[lcore_id].curr_skiplist_depth -1; i >= 0; i--) {
/* break the existing list at current time point */
timer_get_prev_entries(cur_time, lcore_id, prev);
for (i = priv_timer[lcore_id].curr_skiplist_depth -1; i >= 0; i--) {